cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
RACHMASARI PRAMITA WADHANI
Contact Email
mechajournal@gmail.com
Phone
+628174111005
Journal Mail Official
mechajournal@gmail.com
Editorial Address
JL.A.W.SYAHRANIE NO.7 , KEL.BATU AMPAR, BALIKPAPAN UTARA, KALIMANTAN TIMUR PROGRAM STUDI TEKNIK MESIN
Location
Kota bandung,
Jawa barat
INDONESIA
MECHA JURNAL TEKNIK MESIN
Published by universitas tridharma
ISSN : 26569434     EISSN : 26569906     DOI : 10.354239
Core Subject : Education, Engineering,
Automotive Engineering Control & Systems Engineering Education Engineering Mechanical Engineering
MECHA JURNAL TEKNIK MESIN merupakan media publikasi karya ilmiah dibidang ilmu teknik mesin dan ilmu permesinan lainnya, ilmu teknik dan sains, dan teknologi. Terbit bulan April dan Oktober.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 26 Documents
 1   2   3 
PENANGANAN LIMBAH ORGANIK SEBAGAI BAHAN BAKU MEDIA PUPUK Erwin Gustianta
MECHA JURNAL TEKNIK MESIN Vol 4 No 1 (2021): MECHA JURNAL TEKNIK MESIN Volume 4 Nomor 1 Oktober 2021
Publisher : Mechanical Engineering Departement - Universitas Tridharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35439/mecha.v4i1.28

Abstract

Limbah merupakan persoalan yang ada di kota-kota besar, karena semakin tinggi kepadatan penduduk semakin tinggi pula limbah atau sampah dihasilkan, sehingga menimbulkan dampak negative bagi lingkungan yaitu pencemaran udara, tanah, air maupun keindahan tata kota. Limbah organik adalah bahan sisa atau sampah yang diperoleh dari proses produksi atau kegiatan, baik kegiatan dalam ranah rumah rumah tangga maupun industri. Limbah organik merupakan limbah atau sampah yang mudah terurai melalui beberapa proses alami. Salah satu upaya untuk membantu mengatasi permasalahan adalah dengan melakukan upaya daur ulang limbah organik dengan melakukan proses pengomposan, selain mengurangi limbah itu sendiri juga mengurangi volume limbah yang terbuang menjadikan bermanfaat bagi tanaman dan lingkungan fisik tanah. Limbah dijadikan sebagai bahan baku media pupuk organic , berasal dari semua material organik yang mengandung karbon dan nitrogen, seperti kotoran hewan, sampah hijau dedaaunan, sampah kota, lumpur ,limbah rumah tangga , dan limbah industri pertanian. Kata Kunci : limbah, organik, bahan baku , pupuk
EVALUASI BAHAYA DAN PENGENDALIAN RISIKO KECELAKAAN KERJA PADA PROYEK PENINGKATAN JALAN JENEBORA I DAN JENEBORA II KALIMANTAN TIMUR Hikmah Maya Sari; abdullah
MECHA JURNAL TEKNIK MESIN Vol 4 No 2 (2022): MECHA JURNAL TEKNIK MESIN VOLUME 4 NOMOR 2 APRIL 2022
Publisher : Mechanical Engineering Departement - Universitas Tridharma

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The problem that still often occurs in the construction world is the low application of Occupational Safety and Health (K3) in construction projects. In this study, it will be evaluated how the implementation of the Occupational Health and Safety Management System (SMK3) in the Jenebora I and Jenebora II Road Improvement Project (Jenebora-Gersik), North Penajam Paser Regency, East Kalimantan. The purpose of this research is to find out how much understanding of workers and employees about the importance of OSH, to know how much understanding of workers and employees to the availability of guidelines, K3 guidelines, the purpose of implementing an OSH program, the presence of K3 experts and the importance of OHS experts, and to find out how to comply workers and employees on the implementation and implementation of the K3 program on the Jenebora I and Jenebora II (Jenebora-Gersik) Road Improvement Project work. This type of research is quantitative research. The research data were obtained from the results of filling out questionnaires and interviews. The number of samples in this study were 70 people. Data analysis used multiple linear analysis using the help of the Statistical Package for the Social Science (SPSS) version 26. The results showed that the understanding of workers and employees towards the provisions on OHS was on average above 70%, understanding of the availability of guidelines, OHS guidelines, the purpose of implementing them the K3 program, the presence of K3 experts and the importance of K3 experts by workers and employees on average above 70%, adherence to the implementation and implementation of the K3 program is an average of 80%, even the application of K3 rules that have met the established standards and worker obedience the obligation to use good and correct PPE to comply with standard K3 guidelines above 90%. Keywords: hazard evaluation, work accident risk control, multiple linear analysis
ANALISA SISTEM UDARA PEMBAKARAN DAN GAS BUANG PADA BOILER CFB UNIT 3 DI PT. INDO RIDLATAMA POWER Wildan Mukhollad Yasin; Rachmasari Pramita Wardhani
MECHA JURNAL TEKNIK MESIN Vol 4 No 2 (2022): MECHA JURNAL TEKNIK MESIN VOLUME 4 NOMOR 2 APRIL 2022
Publisher : Mechanical Engineering Departement - Universitas Tridharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35439/mecha.v4i2.32

Abstract

The combustion air system in general is a system that functions as a medium for transporting coal to the boiler as well as adding oxygen for the combustion process and making turbolence. Tomaintain efficient combustion in the boiler, the air after combustion must be adjusted to the amount ofcoal that will be burned into the furnace. While the exhaust gas system is the output of the combustionprocess which is used to transfer hot gas from the rest of the combustion process to the water andsteam pipes and air heating elements, after which the exhaust gas is channeled into nature. Before theflue gas from combustion is disposed of directly into nature, it must first meet the quality standards ofthe Ministry of Environment and Forestry for gas emissions. Keywords—PLTU, Boiler, Combustion Air and Flue Gas System
RANCANG BANGUN DAN ANALISIS PENGARUH VARIASI DIAMETER NOSEL TERHADAP DAYA TURBIN PADA ALAT PRAKTIKUM MESIN KONVERSI ENERGI Yano Hurung Anoi; Ratnawati; Najma Safienati Najah; Aditya Putra Sadewa; Usman
MECHA JURNAL TEKNIK MESIN Vol 5 No 2 (2023): Volume 5 Nomor 2 April 2023
Publisher : Mechanical Engineering Departement - Universitas Tridharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35439/mecha.v5i2.34

Abstract

Salah satu sember energi terbarukan yang sangat berpotensi adalah pemanfaatan energi air dan apabila pemanfaatan energi tersebut dilakukan secara meluas diseluruh wilayah Indonesia, maka peluang untuk keluar dari krisis listrik akan semakin besar mengingat Indonesia dengan wilayahnya yang beriklim tropis dengan curah hujan yang tinggi dan kondisi topografi yang bergunung – gunung dengan aliran sungai yang berpotensi untuk dikembangkan sebagai pembangkit tenaga listrik. Potensi ini sebagian besar tersebar di daerah pedesaan, sementara diperkirakan masih banyak penduduk desa yang belum menikmati energi listrik sehingga sangat tepat untuk mengembangkan pembangkit tenaga listrik. Berdasarkan tujuan penelitian maka dapat diambil kesimpulan dari penelitian variasi diameter nosel tersebut, Daya turbin maksimum terjadi pada diameter nosel 20 mm dengan nilai sebesar 0,834 Watt pada rpm 90, kemudian menurun pada diameter nosel 22 mm dengan nilai daya turbin sebesar 0,207 Watt pada rpm 40, sedangkan daya turbin terendah terjadi pada diameter nosel 26 mm dengan nilai daya sebesar 0,176 Watt pada rpm 20. Kata Kunci: Rancang bangun, Turbin air, Daya turbin. Abstract One source of renewable energy that has great potential is the utilization of water energy and if this energy utilization is carried out widely throughout Indonesia, then the opportunity to get out of the electricity crisis will be even greater considering that Indonesia has a tropical climate with high rainfall and unfavorable topography. mountainous with flowing rivers that have the potential to be developed as a power plant. This potential is mostly spread in rural areas, while it is estimated that there are still many villagers who do not enjoy electricity so it is very appropriate to develop a power plant. Based on the research objectives, it can be concluded from the research on variations in nozzle diameter, the maximum turbine power occurs at a nozzle diameter of 20 mm with a value of 0.834 Watt at 90 rpm, then decreases at a nozzle diameter of 22 mm with a turbine power value of 0.207 Watt at 40 rpm, while the lowest turbine power occurs at a nozzle diameter of 26 mm with a power value of 0.176 Watt at 20 rpm. Keywords: Design, Water turbine, Turbine power.
ANALISIS PENGGUNAAN SPECIAL TOOL WEDGE BAND REMOVER TYRE HD785-5 KOMATSU DI PT. PAMA Yusfian; Rachmasari Pramita Wardhani
MECHA JURNAL TEKNIK MESIN Vol 5 No 2 (2023): Volume 5 Nomor 2 April 2023
Publisher : Mechanical Engineering Departement - Universitas Tridharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35439/mecha.v5i2.36

Abstract

Abstrak PT Pamapersada Nusantara (PAMA) adalah perusahaan yang bergerak dalam bisnis “mining & earthmoving contractor”. Sebagai salah satu kontraktor pertambangan terbesar, Pama memiliki kompetensi yang luas dan pemahaman yang menyeluruh dalam hal pengembangan dan operasional, kompetensi yang dimiliki PT. Pamapersada Nusantara yaitu eksplorasi, perencanaan, pembangunan infrastruktur, operasi pertambangan, reklamasi dan re-vegetasi bekas wilayah pertambangan, transshipment dan penjualan dan recondition & remanufacturing unit alat berat. Dump Truck adalah alat atau kendaraan yang digunakan untuk mengangkut material dari jarak sedang hingga jauh. Alat tersebut biasanya digunakan untuk mengangkut bahan material seperti: pasir, kerikil, tanah dan batu bara dimana material tersebut dapat diisikan oleh excavator, wheel loader, maupun shovel. Pada dump truck HD785-5 menggunakan ban atau tyre yang diameternya cukup besar dan tentunya membutuhkan alat spesial guna memudahkan mekanik atau tyreman melepas dengan kondisi aman atau terhindar dari insiden. Tanggung Jawab Group Leader Repair & Maintenance adalah bertugas melakukan perawatan ban meliputi penggantian, pengecekan angin dan fisik ban, dan perbaikan ban / repair tyre. Pada department plant dan tyre, sangat berperan penting dalam melepas tyre dimana dilakukan oleh seorang mekanik atau tyreman disuatu perusahaan, Peneltian ini merupakan jenis penelitian deskriptif dengan menggunakan data primer yang diambil langsung oleh peneliti ke objek yang akan di analisa. Tujuannya adalah agar saat proses pelepasan tyre lebih safety dan tidak merusak komponen rim tyre dan tidak menciderai pekerja atau manusia. Tools wedge band remover didapatkan hasil dengan metode pengendoran wedge band dari manual atau di tumbuk menjadi di tarik dengan tenaga Hydraulic, Pekerjaan dilakukan hanya dua orang tyreman (satu memasang alat, satu mempersiapkan pompa ), Menghilangkan potensi manpower kena paparan akibat ledakan dan tertimpa benda didepan roda dan Menghilangkan resiko kerusakan komponen roda lainnya. Kata Kunci : Dump Truck, Group leader, Tyre, wedge band remover, Hydarulic jack Abstract PT Pamapersada Nusantara (PAMA) is a company engaged in the "mining & earthmoving contractor" business. As one of the largest mining contractors, PAMA has broad competencies and a thorough understanding of development and operations, competencies owned by PT. Pamapersada Nusantara namely exploration, planning, infrastructure development, mining operations, reclamation and re-vegetation of former mining areas, transshipment and sales and reconditioning & remanufacturing of heavy equipment units. Dump Truck is a tool or vehicle used to transport materials from medium to long distances. These tools are usually used to transport materials such as: sand, gravel, soil and coal where these materials can be loaded by excavators, wheel loaders, or shovels. The dump truck HD785-5The responsibility of Repair & Maintenance Group Leader maintenance including replacement, checking the air and physical tires, and repairing tires / repairing tires tire. In department plants and tires, it plays an important role in removing tires which is carried out by a mechanic or tyreman in a company. This research is a type of descriptive research using primary data taken directly by the researcher to the object to be analyzed. The goal is that the tire removal process is safer and does not damage the tire rim components and does not injure workers or humans. wedge band remover tools loosening method wedge band or being crushed to be pulled with hydraulic power, the work is carried out only by two tyremen (one installs the tool, one prepares the pump), eliminates the potential for manpower to be exposed to an explosion and hit by an object in front wheels and Eliminate the risk of damage to other wheel components. Key words : Dump Truck, Group leader, Tyre, wedge band remover, Hydarulic jack
ANALISIS STANDARISASI LAJU PEMAKAIAN BUSHING TERHADAP PIN RADIUS ROD HD785-7 DI PT. PAMA Yusfian; Ris Setri Dharma Simanjuntak; Sunarji
MECHA JURNAL TEKNIK MESIN Vol 5 No 2 (2023): Volume 5 Nomor 2 April 2023
Publisher : Mechanical Engineering Departement - Universitas Tridharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35439/mecha.v5i2.38

Abstract

AbstrakE-ISSN: 2656-9906, P-ISSN: 2656-9434 PT Pamapersada Nusantara (PAMA) adalah perusahaan yang bergerak dalam bisnis “mining & earth movingcontractor”. Pada dump truck HD785-7 Komatsu Di PT. Pamapersada Nusantara, terdapat komponen rear axle dandipasang pada bagian bawah chassis bagian belakang sebagai dudukan roda belakang dan dipasang differential danfinal drive, sehingga akan menyalurkan putaran dan torque engine ke roda. Jika dilihat dari fungsinya di atas makarear axle adalah salah satu komponen yang sangat vital dari sebuah dump truck. Salah satu permasalahan pada rearaxle dump truck adalah keausan pada bushing radius rod. Dari 55 unit yang kirim ke jobsite pada tahun 2017 sekitar50-60 % bushing mengalami keausan sebelum waktunya pergantian bushing. Di unit dump truck terdapat 2 buahbushing radius rod, dimana harga total bushing tersebut Rp. 22.230.584,-. Apabila tidak dilakukan perbaikan makaakan turunnya produksi unit tersebut karena unit breakdown lama yang disebabkan waiting sparepart dikarenakanpengorderan sparepart yang butuh waktu lama. Penelitian ini merupakan jenis penelitian deskriptif denganmenggunakan data primer yang diambil langsung oleh peneliti ke objek yang akan di analisa. Tujuannya adalah untukmengetahui keausan bushing dan sisa umur pakai dari komponen bushing. Penyebab keausan dikarenakan terjadinyagesekan pin secara langsung pada bushing, Dari perhitungan didapatkan dimana ditemukan analisa bahwa standarisasilaju keausan bushing DT3499 hanya sekitar 5.992 sampai 6.836 hours meter pada bushing 1 dan bushing 2 dankeausan rata-rata pada bushing yaitu sebesar 90.091 mm sesuai dengan diameter standar bushing yang sudahditentukan oleh dealer PT. United Tractors Tbk . grafik peta kendali menerangkan bahwa bushing hanya bisa dipakaipada batas umur jam kerjanya 5992 sampai umur 6836 jam untuk batas yang paling mendekati Upper Control Limit(UCL) keausan bushing sesuai standar toleransi dealer sebesar 90.09 mm. Kata Kunci : Dump Truck, Axle, Radius Rod, Pin, Bushing Abstract Pamapersada Nusantara (PAMA) is a company engaged in business “mining & earth moving contractors”. On the Komatsu HD785-7 dump truck At PT. Pamapersada Nusantara, there is a rear axle component and it isinstalled on the under the rear chassis as a rear wheel mount and installed differential and final drive, so that it willdistribute engine speed and torque to the wheel. When viewed from the function above, the rear axle is one of the mostimportant components very vital from a dump truck. One of the problems with the rear axle dump truck is wear on theradius bushing rod. Of the 55 units sent to the jobsite in 2017 about 50-60% bushing wears out prematurely forbushing replacement. In the dump truck unit there are 2 bushing radius rods, where the total price of the bushings isRp. 22,230,584,-. If no repairs are made, the unit's production will decrease because: old unit breakdown caused bywaiting spare parts due to ordering spare parts that take a long time. research is a type of descriptive research byusing primary data taken directly by the researcher to the object will be analyzed. The aim is to determine bushingand remaining life components bushing. The cause of wear is due to pin friction directly on the bushing, From thecalculations obtained where the analysis is found that the standardized wear rate of DT3499 bushings is only about5,992 to 6,836 hours meter on bushing 1 and bushing 2 and the average wear on bushing is of 90,091 mm according to diameter standard bushing predefined by dealers PT. United Tractors Tbk . the control chart graph shows that thebushing can only be used on the working hours of 5992 to 6836 hours for the limit closest to the Upper Control Limit(UCLwear bushing according to standard tolerance dealer of 90.09 mm. Key words : Dump Truck, Axle, Radius Rod, Pin,Bushing.

Page 3 of 3 | Total Record : 26

 1   2   3 

Filter by Year

2019 2023


Reset
Filter By Issues
All Issue Vol 5 No 2 (2023): Volume 5 Nomor 2 April 2023 Vol 4 No 2 (2022): MECHA JURNAL TEKNIK MESIN VOLUME 4 NOMOR 2 APRIL 2022 Vol 4 No 1 (2021): MECHA JURNAL TEKNIK MESIN Volume 4 Nomor 1 Oktober 2021 Vol 3 No 2 (2021): Mecha Jurnal Teknik Mesin Volume 3 Nomor 2 April 2021 Vol 3 No 1 (2020): MECHA JURNAL TEKNIK MESIN VOLUME 3 NOMOR 1 OKTOBER 2020. Vol 2 No 1 (2019): MECHA JURNAL TEKNIK MESIN VOLUME 2 NOMOR 1 OKTOBER 2019 Vol 1 No 2 (2019): MECHA JURNAL TEKNIK MESIN VOLUME 1 NOMOR 2 APRIL 2019